utah flora bot2100 lecture 7 angiosperm families iii including: fabaceae apiaceae onagraceae...
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Utah Flora BOT2100
Lecture 7Angiosperm Families III
Including:
FabaceaeApiaceae
Onagraceae Malvaceae
Utah Flora BOT2100
Major Families
Fabaceae – garden peas, lupines, clovers
Polygalaceae – milkworts
Fabales
4 families 754 genera 20,055 species
Utah Flora BOT2100Fabales
Fabaceae Leguminosae
Worldwide 730 genera 19,400 species
Utah (Native and Introduced) 56 genera 216 species•annuals, perennial herbs, shrubs, or trees
•leaves alternate, pinnately or palmately compound, rarely simple
•inflorescence in racemes
•flowers superior, perfect, irregular
•calyx fused, 5 lobed, often 2-lipped
•corolla of 5 petals, 2 fused, 3 seperate (banner, wings, and keel)
•stamens 5 or 10, filaments fused in a tube
•fruit a legume or loment (pods formed from 2 carpels)
Utah Flora BOT2100
Lathyrus Worldwide 150 species
Utah (Native and Introduced) 7 species
•annual or perennial herbs with tendrils
•leaves even-pinnate•pinnately compound with a even number of leaflets•terminal leaflet replaced by a tendril
•flowers white, pink, or lavender
•style bearded down one side
•sister genus, Vicia, is identical except style is bearded at apex only
Fabales Fabaceae Leguminosae
Utah Flora BOT2100
Lathyrus brachycalyx
•sagebrush valley & montane species
•plants perennial herbs with tendrils
•corolla purplish, 15-30 mm long
Fabales Fabaceae Leguminosae
Utah Flora BOT2100
Melilotus Worldwide 20 species
Utah (Introduced) 3 species
•annual herbs, herbage non-glandular
•leaflets 3, pinnately compound, the terminal leaflet petioliate•leaflets with toothed margins
•inflorescence racemose, several times longer than wide
•pods straight, ovoid (egg-shaped)
Fabales Fabaceae Leguminosae
Utah Flora BOT2100
Melilotus officinalis
•weedy exotic species
•corolla yellow, 3-7 mm long
•pods straight, ovoid (egg-shaped)
Fabales Fabaceae Leguminosae
Utah Flora BOT2100
Trifolium Worldwide 240 species
Utah (Native and Introduced) 18 species
•annual or perennial herbs
•leaves palmately or pinnately compound; •leaflets 3, with toothed margins
•flowers in dense, capitate racemes, •sometimes involucrate (with bracts)
•corollas white, pink, or lavender
•legumes small, generally 1 to 3 seeded
Fabales Fabaceae Leguminosae
Utah Flora BOT2100
Trifolium longipes
•montane species
•plants perennial herbs
•heads without a toothed involucre
•calyx villosulous
•corolla purplish, 10-12 mm long
Fabales Fabaceae Leguminosae
Utah Flora BOT2100
Major Families
Onagraceae – evening primrose, suncups
Lythraceae – loosetrife (noxious weed)
Myrtaceae – Eucalyptus, Melaleuca (leaves of trees used as herbal remedies)
Myrtales
9 families 380 genera 11,027 species
Utah Flora BOT2100Myrtales
Onagraceae
Worldwide 22 genera 656 species
Utah (Native and Introduced) 10 genera 63 species•annuals or perennial herbs, rarely shrubs
•leaves alternate or opposite, simple or pinnately compound
•inflorescence solitary or in racemes, often axillary
•flowers inferior, perfect, regular
•calyx of 4 sepals, separate; corolla of 4 petals, separate
•stamens 4 or 8
•fruit a capsule
Utah Flora BOT2100
Oenothera Worldwide 145 species
Utah (Native) 18 species
•annual, biennial, or perennial herbs
•leaves alternate, simple or compound, often clustered at base of stem
•flowers solitary
•corollas white, yellow, pink, or lavender, often opening in evening
MyrtalesOnagraceae
Utah Flora BOT2100
Oenothera caespitosa
•desert to sagebrush valley species
•plants acaulescent (without stems)
•corolla white, 2.5-6 cm long
MyrtalesOnagraceae
Utah Flora BOT2100
Epilobium Worldwide 165 species
Utah (Native) 14 species
•annual, biennial, or perennial herbs
•leaves opposite (sometimes upper ones alternate), simple
•flowers solitary & axillary or in terminal racemes
•fruit a elongate capsule; seeds with a tuft of hairs
MyrtalesOnagraceae
Utah Flora BOT2100
Epilobium angustifolium
•montane species
•plants erect, rhizomatous
•corolla 10-30 mm long
MyrtalesOnagraceae
Utah Flora BOT2100
Major Families
Apiaceae – carrots, parsley
Araliaceae – ginseng
Apiales
7 families 494 genera 5489 species
Utah Flora BOT2100Apiales
Apiaceae Umbelliferae
Worldwide 434 genera 3780 species
Utah (Native and Introduced) 27 genera 72 species•annual or perennial herbs
•leaves alternate, simple or pinnately compound
•inflorescence in compound umbels
•flowers inferior, perfect, regular
•calyx of 5 sepals, separate; corolla of 5 petals, separate
•stamens 5
•fruit a schizocarp (dry fruit which splits into 2 to many, 1 seeded segments
Utah Flora BOT2100
Angelica Worldwide 110 species
Utah (Native) 4 species
•perennial herbs, caulescent
•leaves alternate, often with a broad sheath, pinnately compound
•inflorescence a compound umbel
•fruit a schizocarp, the dorsal and lateral ribs with small wings
Apiales Apiaceae Umbelliferae
Utah Flora BOT2100
Angelica kingii
•montane species
•leaflets lanceolate, toothed or lobed
•umbels 7-20 rayed
Apiales Apiaceae Umbelliferae
Utah Flora BOT2100
Major Families
Malvaceae – Hibiscus, hops, hollyhocks
This is the only family of this group found in Utah, as a native or introduced
Malvales
10 families 338 genera 6005 species
Utah Flora BOT2100Malvales
Malvaceae
Worldwide 243 genera 4,500 species
Utah (Native and Introduced) 12 genera 25 species•annuals, perennial herbs, or shrubs; herbage with stellate hairs
•leaves alternate, simple or palmately lobed
•inflorescence in solitary or racemes or cymes
•flowers superior, perfect, regular
•calyx of 5 sepals, separate; corolla of 5 petals, separate
•stamens numerous, filaments fused into a sheath around the style
•fruit a schizocarp (dry fruit which splits into many, 1 seeded segments
Utah Flora BOT2100
Sphaeralcea Worldwide 30 species
Utah (Native) ~17 species
•perennial herbs, herbage with often dense stellate hairs
•leaves alternate, palmately lobed to nearly compound
•inflorescence a cyme, often with leafy bracts
•racemose cymes – with one flower per node•thyrsoid cymes – with two or more flowers per node
•fruit a schizocarp
Malvales Malvaceae
Utah Flora BOT2100
Sphaeralcea coccinea
•most common species of this genus in Utah
•rhizomatous perennial
•leaves deeply 3-5 lobed
•inflorescence a thrysoid cyme
Malvales Malvaceae
Utah Flora BOT2100Quiz 3Part A
On the sheet of paper provided, please answer the following questions (spelling counts):
1.To which family does this specimen belong?
2.?
3.?
Utah Flora BOT2100Quiz 3Part B
1.On a new sheet, please determine this specimen to genus (spelling counts).
This specimen belongs to family:
2. If time remains, for extra credit, determine this specimen to species
You may use your Utah Flora, your notes, or any other handouts provided in class for Part B
Utah Flora BOT2100
Assignment
•Draw and label species provided in lab
•Make sure to label those morphological features that helped you identify the sample (the characters in the key)
•Identify & label all samples to family and genus
•For Practice: use A Utah Flora to identify & label all samples to species (other than any we determined in class together)
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